//
// Copyright 2018 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
//    names, trademarks, service marks, or product names of the Licensor
//    and its affiliates, except as required to comply with Section 4(c) of
//    the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#include "pxr/imaging/hd/renderBuffer.h"
#include "pxr/imaging/hd/sceneDelegate.h"

PXR_NAMESPACE_OPEN_SCOPE

HdRenderBuffer::HdRenderBuffer(SdfPath const& id)
    : HdBprim(id)
{
}

HdRenderBuffer::~HdRenderBuffer()
{
}

/*virtual*/
HdDirtyBits
HdRenderBuffer::GetInitialDirtyBitsMask() const
{
    return HdRenderBuffer::AllDirty;
}

/*virtual*/
void
HdRenderBuffer::Sync(HdSceneDelegate *sceneDelegate,
                     HdRenderParam *renderParam,
                     HdDirtyBits *dirtyBits)
{
    if (*dirtyBits & DirtyDescription) {
        const HdRenderBufferDescriptor desc =
            sceneDelegate->GetRenderBufferDescriptor(GetId());

        if (!(desc.dimensions[0] >= 0 &&
              desc.dimensions[1] >= 0 &&
              desc.dimensions[2] >= 0)) {
            TF_CODING_ERROR("Bad dimensions for render buffer %s",
                            GetId().GetText());
            return;
        }

        Allocate(desc.dimensions, desc.format, desc.multiSampled);
    }
    *dirtyBits &= ~AllDirty;
}

/*virtual*/
void
HdRenderBuffer::Finalize(HdRenderParam *renderParam)
{
    _Deallocate();
}

PXR_NAMESPACE_CLOSE_SCOPE
